Finance debt - Fair value of long-term debt (Details) - EUR (€) € in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Borrowings | ||
| Financial liabilities, at fair value | € 23,650 | € 24,831 |
| Long-term and current portion of long-term ordinary bonds and sustainability-linked bond | ||
| Borrowings | ||
| Financial liabilities, at fair value | 20,119 | 21,026 |
| Long-term and current portion of long-term convertible sustainability-linked bonds | ||
| Borrowings | ||
| Financial liabilities, at fair value | 1,071 | 973 |
| Long-term and current portion of long-term bank debt | ||
| Borrowings | ||
| Financial liabilities, at fair value | 1,608 | 1,143 |
| Long-term and current portion of long-term debt with other financial institutions | ||
| Borrowings | ||
| Financial liabilities, at fair value | € 852 | € 1,689 |